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Science News Archive March 2013 - Page 18


Page 18 of 30

It's all in the way we move

A team of researchers from the University of the Witwatersrand analyzed the movement patterns of bipedal kangaroos and wallabies, comparing them to quadrupedal marsupials. They found that bipedal marsupials experience greater joint forces in their hind limbs, which provides insight into the structural uniqueness of these joints.

SourceUniversity of the Witwatersrand·JournalPLOS ONE·DateMar 13, 2013

Extreme water

A team of researchers studied water under extreme conditions, discovering its structure transforms from ordered to disordered at supercritical temperatures. This knowledge provides an improved estimate of water's behavior during geochemical and geological processes.

SourceHelmholtz Association·JournalProceedings of the National Academy of Sciences·DateMar 13, 2013

Doing business with a parrot

A new study at the University of Vienna found that Goffin cockatoos wait up to 80 seconds for higher-quality food rewards, showing impressive self-control. The birds traded their initial items more often for their most preferred food and adjusted to differences in trade value, mirroring human economic decision-making.

SourceUniversity of Vienna·JournalBiology Letters·DateMar 13, 2013

Political strife undermines HIV treatment

A new paper highlights how political conflict can lead to disrupted treatment, promoting resistance to antiretroviral drugs and treatment failure. The authors call for further research and planning to mitigate the effects of treatment interruption in strife-prone nations with high rates of HIV infection.

SourceBrown University·JournalAids Reviews·DateMar 12, 2013

The nose's unheralded neighbor

Researchers discovered that maxillary sinuses change size to accommodate different climates, affecting nasal cavity shape and function. The study found a significant correlation between nose size and sinus volume in both African and European populations.

SourceUniversity of Iowa·JournalThe Anatomical Record·DateMar 12, 2013

Antibiotic-resistant strain of E. coli increasing among older adults and residents of nursing homes

A recent study reveals that antibiotic-resistant E. coli strain ST131 is increasingly found in hospitals and long-term care facilities, particularly among older adults and nursing home residents. The study found that LTCF residence was the strongest predictor of ST131 infection, with LTCF residents having 8 times the risk of contractin...

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateMar 12, 2013

Marine diversity study proves value of citizen science

A new research study published in Methods in Ecology and Evolution found that methods used by amateur citizen scientists compare well with traditional scientific methods for monitoring species diversity. The study detected greater marine diversity using a volunteer technique than traditional scientific surveys in the same waters.

SourceUniversity of East Anglia·JournalMethods in Ecology and Evolution·DateMar 12, 2013

BUSM study reveals therapeutic targets to alter inflammation, type 2 diabetes

A study from Boston University School of Medicine reveals that B cells secrete pro-inflammatory cytokines promoting insulin resistance and directly regulating inflammatory T cells. This discovery supports the exploration of FDA-approved B cell depletion drugs as novel agents to prevent obesity-associated inflammation and type 2 diabetes.

SourceBoston University School of Medicine·JournalProceedings of the National Academy of Sciences·DateMar 12, 2013

Kid's consumption of sugared beverages linked to higher caloric intake of food

A new study published in the American Journal of Preventive Medicine found that sugared beverages are primarily responsible for increased caloric intakes in children. The research, which analyzed data from over 10,000 children aged 2-18, also showed a link between higher consumption of sugared beverages and consumption of unhealthy foods.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateMar 12, 2013

Mystery of 'zombie worm' development unveiled

A new study elucidates the reproductive strategy of bone-eating worms, shedding light on their postembryonic development and sexual maturation. The researchers observed the duration of the larval stage, male dwarfism, and rapid female spawning, enabling effective reproduction in a food-rich but isolated habitat.

Fertility after ectopic pregnancy: Study finds reassuring evidence on different treatments

A randomized trial compared treatments for ectopic pregnancies, finding no significant differences in subsequent fertility between medical treatment and conservative surgery. The study suggests that medical treatment may be preferred for less active ectopic pregnancies due to fewer risks, while surgical treatment is recommended for wom...

Device may lead to quicker, more efficient diagnostics

Researchers developed a new thin film technology that allows for simultaneous analysis of multiple substances, leading to faster and more efficient diagnostics. The device can detect changes in chemical composition using optical fingerprints, offering improved accuracy and reliability compared to existing state-of-the-art technology.

SourcePenn State·JournalScientific Reports·DateMar 12, 2013

Asterix's Roman foes -- Researchers have a better idea of how cancer cells move and grow

Scientists at the University of Montreal's IRIC have identified a key mechanism that enables cancer cells to coordinate their movement, allowing them to disseminate efficiently in the body. By understanding this mechanism, researchers hope to develop molecular targets to disrupt collective cell migration and fight metastasis formation.

SourceUniversity of Montreal·JournalNature Cell Biology·DateMar 12, 2013